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JP3396908B2 |
PURPOSE: To provide a line filter employed in various electronic appliances for the purpose of noise prevention in which high frequency impedance is ensured by decreasing the stray capacitances between the winding parts. CONSTITUTION: On...
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JP2003100531A |
To provide a compact common mode choke coil wherein coupling among windings is tight and its differential mode impedance is small.A pair of windings 6 and 7 are wound around the outer circumference of a wound core 3 of a bobbin 2 by norm...
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JP2003100518A |
To provide a matching unit which is capable of reducing a leakage flux, improving a magnetic coupling, and decreasing stray capacitance without increasing its size.A matching unit is equipped with input coils N1 connected in series and o...
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JP2003100510A |
To provide a MODEM transformer magnetic core material which is suitable for an xDSL MODEM transformer magnetic core, has a small total harmonic distortion, and is superior in temperature characteristics.This magnetic core material contai...
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JP2003100533A |
To provide a high-voltage transformer provided with a focus case that is free from halogen and superior in oil resistance.A coil assembly that is formed by engaging high-voltage and low-voltage coils with a core is housed in a transforme...
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JP3391596B2 |
PURPOSE: To obtain a coil or a transformer which is formed through a simple automatic process without using a winding equipment, excellent in mass productivity, small in size, light in weight, and large in inductance and number ratio of ...
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JP3391602B2 |
PURPOSE: To provide a high-coupling, small, and thin sheet transformer adapted to allow a large current to flow therethrough, concerning a sheet transformer used for each kind of image equipment, industrial equipment, acoustic equipment,...
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JP2607832Y2 |
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JP3388401B2 |
To realize downsizing and cost reduction of an inverter transformer having a closed magnetic circuit structure which turns on a plurality of cold cathode lamps (has nor variation of discharging operation among a plurality of cold cathode...
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JP3387155B2 |
PURPOSE: To reduce the heat conducted from the fused solder to the thermal member holder of a bobbin in the solder dipping step. CONSTITUTION: A conductor bobbin 19 is protruded in the lateral direction to the inserted direction of a sub...
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JP3381441B2 |
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JP3373350B2 |
To obtain a magnetic component which is provided with a high-frequency characteristic and with a low-loss characteristic and which is small and thin by a method wherein a magnetic circuit which is composed of both multilayer magnetic fil...
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JP2003031428A |
To solve the problem that the plane area of a coil component increases to occupy a wide mounting area on a printed board, and it is difficult to lower the height of the entire structure of an electronic circuit such as DC-DC converters a...
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JP3360342B2 |
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JP2002359120A |
To provide a reliable laminated balance transformer that can be miniaturized, and at the same time suppresses variation in electromagnetic coupling. The laminated balance transformer has first to fourth coils (h) to (k) formed in the thi...
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JP2002359125A |
To provide an inductor component that can obtain the maximum bias effect by the minimum number of turns without requiring any need for securing clearance. At the outer periphery of a band- or rod-like conductor 13, at least two cores 11 ...
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JP2002353024A |
To obtain a ferrite magnetic core, having a low-temperature coefficient of large μi which is not smaller than 2,500 and the changing rate of its μi is small over a wide temperature range. The ferrite magnetic core is made of Fe2O3 of 5...
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JP2002343642A |
To solve such a problem, that when the primary and secondary windings of an output transformer are wound into an intricate multilayered and multi-division sandwich, in order to improve the characteristics of the transformer in high-frequ...
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JP2002343643A |
To provide a laminated balanced transformer that has high flexibility of the adjustment of the impedance or coupling amount of a transmission line, and accordingly, can easily obtain desired electrical characteristics.The distances betwe...
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JP3340303B2 |
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JP2002319511A |
To obtain a coil using a magnetic core which does not transfer vibrations to a substrate via a base and lead wires even in the case where the base is vibrated, and can reduce an abnormal sound generated in the contact of the substrate wi...
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JP2002313663A |
To provide a method of manufacturing a closed magnetic circuit thin film magnetic core which is easily manufactured, and to provide a method of manufacturing a microinductor and a microtransformer, which are low in a leakage magnetic flu...
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JP2002313644A |
To provide a transformer to be used for digital data transmission which is prevented from the deterioration of electric characteristics due to a connection pattern of a coil lead.The transformer comprises a core 23 which is formed with a...
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JP2002313647A |
To provide an inductor component with a permanent magnet which can be manufactured efficiently with a high mass-productivity without damaging magnetic bias characteristics.The inductor component comprises an E-type lower soft-magnetic ma...
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JP2002299127A |
To provide a laminated balun transformer in which the adjustment of the electromagnetic coupling of a transmission path can be performed easily, and which can be made compact in size.This laminated balun transformer, where the stack havi...
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JP2002289444A |
To provide a high frequency power inductance element with which leakage can be remarkably reduced by considerably reducing a capacitance between windings, the property of heat radiation from a coil can be remarkably improved and further,...
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JP2002280878A |
To provide an electronic circuit unit suitable for reduction in size and weight by simplifying a required circuit configuration.On the same plane of a substrate 10, spiral first and second inductors 2 and 3 are formed into thin film, the...
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JP2002271161A |
To provide a high-frequency signal distributor where floating capacity and floating inductance are hardly generated in the vicinity of a transformer.A transformer for impedance matching and a transformer for signal distribution, each of ...
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JP2002271111A |
To provide a laminated balance element, capable of being easily designed, so as not to bring about a large difference between outputs and phases of signals of a first balanced terminal and a second balanced terminal, when it is mounted i...
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JP2002270431A |
To provide a balance transformer for preventing the saturated output of a push-pull amplifier from decreasing.The balance transformer 10 (30) comprises a balance body 14 (34) for distributing and combining the signal, and a balance corre...
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JP2002270430A |
To provide a reliable pulse transformer that is less affected by electrostatic current and electromagnetic induction surge, and can obtain stable insulating performance.Electrostatic shielding conductors 11-16 arranged around a primary w...
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JP2002270437A |
To reduce loss in the main coil by increasing the occupation rate of the conductor of the main coil to the arrangement region of the entire conductor, and at the same time increase the freedom of the number of turns of the auxiliary coil...
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JP2002260930A |
To provide a balun transformer which can be made compact and can improve insertion loss by optimizing the electromagnetic coupling of strip lines.This standard balun transformer 11 is provided with a dielectric layer 12c where a spiral s...
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JP2002260931A |
To realize further downsizing and manufacture a large quantity at a low cost.An unbalanced coil pattern 22 formed in meandering or spiral state and first and second balanced coil patterns 26 and 30 sandwiching it with a dielectric materi...
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JP2002261563A |
To provide a three-transformer high-frequency signal distributor which comprises wide-band frequency characteristics and which can be constituted to be small.The high-frequency signal distributor is provided with a ferrite core 10A which...
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JP2002231540A |
To easily and inexpensively provide a magnetic core which has one or more gaps in a magnetic path and a superior DC superimposing characteristic and core loss characteristic even after reflow treatment and in which permanent magnets are ...
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JP2002231541A |
To lower the core loss of a magnetic core provided with a permanent magnet for magnetic bias as the magnetic core of an inductance part and, at the same time, to improve the DC superimposing characteristic of the core.The permanent magne...
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JP2002217670A |
To solve the problem in that an insertion loss is low at a frequency higher than a given frequency and noises with frequency higher than a working frequency band is also produced.The balun transformer includes first and second lines conn...
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JP2002217036A |
To provide a high frequency composite circuit and component with less signal leakage and insertion loss in an unbalanced line.A high frequency compound circuit 20 comprises a balun section 21 and a branching composite circuit 22. The bal...
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JP2002523896A |
A planar transformer is provided which includes an E-shaped core with a central leg and spaced adjacent legs, a primary winding, and first and second secondary tracks. The primary winding is defined on a primary layer through which the c...
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JP3309798B2 |
To provide a transformer by which a sufficient sound pressure characteristic is obtained from a low frequency band to a high frequency band without decreasing a volume of a piezoelectric material by improving sufficiently a coupling degr...
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JP3305997B2 |
To provide a magnetically-biased electromagnetic induction device which can exhibit a high efficiency and can lighten inductive trouble even when used in a high frequency circuit. Since magnetic-bias applying means 12 provided on a side ...
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JP3306365B2 |
To reduce magnetic coupling among a plurality of elements formed on a core by applying windings to the left and right legs of a core having substantially spectacle-shape cross-section, formed by abutting a pair of cores each having three...
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JP3304085B2 |
PCT No. PCT/GB91/00459 Sec. 371 Date Nov. 19, 1992 Sec. 102(e) Date Nov. 19, 1992 PCT Filed Mar. 27, 1991 PCT Pub. No. WO91/15022 PCT Pub. Date Oct. 3, 1991.A cable coupling trandformer having a metal or ferrite member defining separate ...
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JP2002198764A |
To provide a band reject filter that can easily be manufactured without the need for an electric wire cutting or winding work.The band reject filter of this invention is manufactured by obtaining an inductive component by utilizing a pri...
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JP3299639B2 |
PURPOSE: To enable a surface-mounting coil to be easily lessened in cost, size, and weight by a method wherein recesses are provided to a magnetic core, and flat plate-like terminals are fixed to the recesses. CONSTITUTION: Winding secti...
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JP3298917B2 |
PURPOSE: To provide a split winding bobbin that realizes a small and reliable transformer, by improving the strength at a tooth part and preventing a short circuit caused by contact between coils. CONSTITUTION: In a split winding bobbin,...
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JP2002190413A |
To provide a laminated balun transformer that is reduced in size, particularly, in thickness.This laminated balun transformer is composed of a first strip line 21, having first and second conductors 22a and 22b and provided on one main s...
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JP2002175918A |
To provide an inductor, the permanent magnets of which are not demagnetized, because the inductor can maintain a high magnetic inductance value, even if the electrical current supplied to the inductor has a large value and hardly causes ...
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JP2002175921A |
To provide an electronic component, such as a laminated electronic component or the like which is small in size, high in performance, and superior in overall electrical properties.Spherical single crystals of ferrite of an average grain ...
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